APA Citation

Friedrich, J., & Gaynor, F. (1957). Extinct languages. New York: Philosophical Library.

Chicago Style Citation

Friedrich, Johannes, and Frank Gaynor. Extinct Languages. New York: Philosophical Library, 1957.

MLA Citation

Friedrich, Johannes, and Frank Gaynor. Extinct Languages. New York: Philosophical Library, 1957.

Warning: These citations may not always be 100% accurate.